Sonic scrubber



FIG. 1 is a front view of a sonic scrubber showing my new design;

FIG. 2 is a left side view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a rear view thereof; and,

FIG. 6 is a lower right front perspective view thereof.

The broken lines shown between the bristle carrier and the body in FIGS. 2-4 illustrate portions of the sonic scrubber that form no part of the claimed design. 

CLAIM The ornamental design for a sonic scrubber, as shown and described. 